28 On the Management of Aquatic Plants. 



Introduced in 1809, and is figured in the Botanical Maga- 

 zine, Plate 1359. 



5. Nymphtza pygmcea : a native of China ; requires to be 

 placed in shallow water, from four to six inches deep, al- 

 though one, which fell into my pond, came to the surface 

 from the depth of four feet and a half; it grows similarly to 

 those already noticed, with heart-shaped, lobed leaves, about 

 three inches in diameter, on foot-stalks proceeding from the 

 root ; the flowers, which are of a delicate white, seldom exceed 

 two inches in breadth, and lie also on the water ; it flowers 

 nearly through the year. Introduced in 1805, and is figured 

 in the Botanical Magazine, Plate 1525, as well as in the 

 Paradisus Londinensis, Plate 68, where it is called Castalia 

 pygmcea. 



6. Nymphcea lotus : a native of Egypt, growing also at the 

 Hot Wells in Hungary ; it requires (to grow it well) about 

 ten inches, or a foot, in depth of water, above the mud ; the 

 leaves and flowers of this species also proceed, on foot-stalks, 

 immediately from the root ; the leaves are shaped somewhat 

 like those of the others, but are toothed on the margin ; the 

 flowers which are exquisitely white and delicate, stand above 

 the water several inches, the petals lying at almost a right 

 angle with the stalk ; they continue to open about four days, 

 beginning to expand early in the morning, and close about 

 noon ; the bud sinks under water, when the flower closes, 

 and rises again, when it opens ; it blooms but very sparingly, 

 from June to September, Introduced in 1802, and is figured 

 in the Botanical Magazine, Plate 797. 



7. Nymphcea pubescens : a native of the East Indies; in 

 habit very similar to the preceding, and thence called Indian 



